feat(opencode): Windows PowerShell installer and Desktop key file
CLI and Desktop share %USERPROFILE%\.config\opencode. Persist the API key in .arka-api-key so GUI apps do not need a login-shell export.
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# install-arka-provider.ps1 — OpenCode Arka-AI provider for Windows
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# (CLI and Desktop). Idempotent. Canonical files also live next to this script.
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#
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# One-liner (PowerShell):
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# irm https://git.arka-ai.ru/arka/public/raw/branch/main/opencode/install-arka-provider.ps1 | iex
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#
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# With key + default model:
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# iwr -useb URL -OutFile $env:TEMP\install-arka.ps1
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# powershell -ExecutionPolicy Bypass -File $env:TEMP\install-arka.ps1 -Key $env:ARKA_API_KEY -SetDefault DeepSeek-V4-Pro
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#
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# cmd.exe:
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# powershell -NoProfile -ExecutionPolicy Bypass -Command "irm URL | iex"
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[CmdletBinding()]
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param(
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[string]$Key,
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[string]$SetDefault
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)
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$ErrorActionPreference = 'Stop'
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if (-not $Key) { $Key = $env:ARKA_API_KEY }
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function Get-ConfigDir {
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if ($env:XDG_CONFIG_HOME) { return (Join-Path $env:XDG_CONFIG_HOME 'opencode') }
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return (Join-Path $HOME '.config\opencode')
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}
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function Get-InstallDirs {
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$dirs = New-Object System.Collections.Generic.List[string]
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$canonical = Get-ConfigDir
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[void]$dirs.Add($canonical)
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if ($env:APPDATA) {
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$legacy = Join-Path $env:APPDATA 'opencode'
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if ((Test-Path $legacy) -and ($legacy -ne $canonical)) { [void]$dirs.Add($legacy) }
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}
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return $dirs
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}
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if (-not $Key) {
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$entered = Read-Host 'ARKA_API_KEY (leave blank to skip)'
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if ($entered) { $Key = $entered }
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}
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$plugin = @'
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import { homedir } from "node:os"
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import { existsSync, mkdirSync, readFileSync, writeFileSync } from "node:fs"
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import { join } from "node:path"
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const PROVIDER_ID = "Arka-AI"
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const API_URL = "https://api.arka-ai.ru/v1"
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const CATALOG_URL =
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"https://git.arka-ai.ru/arka/public/raw/branch/main/opencode/catalog.json"
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const TTL_MS = 24 * 60 * 60 * 1000
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function configDir(): string {
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const xdg = process.env.XDG_CONFIG_HOME
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if (xdg) return join(xdg, "opencode")
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return join(homedir(), ".config", "opencode")
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}
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function cacheDir(): string {
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const xdg = process.env.XDG_CACHE_HOME
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if (xdg) return join(xdg, "opencode")
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return join(homedir(), ".cache", "opencode")
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}
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const CACHE_FILE = join(cacheDir(), "arka-ai-models.json")
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const KEY_FILE = join(configDir(), ".arka-api-key")
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function readApiKey(): string | undefined {
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const fromEnv = process.env.ARKA_API_KEY?.trim()
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if (fromEnv) return fromEnv
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try {
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if (existsSync(KEY_FILE)) {
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const fromFile = readFileSync(KEY_FILE, "utf8").trim()
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if (fromFile) return fromFile
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}
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} catch {}
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return undefined
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}
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// Ids that must always be exposed, even if the filter would drop them.
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const FORCED_MODELS = [
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"DeepSeek-V4-Pro",
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"deepseek-v4-flash-0731",
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"qwen3.8-max",
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"kimi-k3",
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"MiniMax-M3",
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"GLM-5.3",
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]
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// Heuristic: drop non-chat models (TTS/ASR/image/video/OCR/embeddings/rerankers…)
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// from the catalog so they don't clutter the /models picker.
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// Keep in sync with scripts/sync-catalog.py
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const NON_CHAT = new RegExp(
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[
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"tts", "asr", "audio", "speech", "voice", "whisper", "sensevoice",
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"image", "(^|[.-])img", "wan", "vidu", "video", "sora", "flux",
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"diffus", "kolors", "cogview", "ocr", "embedding", "(^|[.-])embed",
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"rerank", "clip", "moderation", "(^|[.-])filter", "detect", "classif",
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"(^|[.-])location", "(^|[.-])search", "comfyui", "meme", "hello",
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"(^|[.-])sam", "florence", "esrgan", "rmbg", "background", "poster",
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"(^|[.-])face", "(^|[.-])lip", "translate", "(^|[.-])mt([2-]|$)",
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"(^|[.-])bge", "(^|[.-])e5", "(^|[.-])jina", "(^|[.-])mpnet",
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"spark-tts", "cosyvoice", "chattts", "indextts", "step-audio",
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"fish-speech", "cosy", "mate-gguf", "tokenizer",
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].join("|"),
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"i",
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)
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type ModelMap = Record<string, { name: string }>
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type Cache = { ts: number; models: ModelMap }
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function loadCache(): Cache | null {
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try {
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if (existsSync(CACHE_FILE)) return JSON.parse(readFileSync(CACHE_FILE, "utf8"))
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} catch {}
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return null
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}
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function saveCache(models: ModelMap): void {
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try {
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mkdirSync(cacheDir(), { recursive: true })
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writeFileSync(CACHE_FILE, JSON.stringify({ ts: Date.now(), models }))
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} catch {}
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}
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async function fetchJson(
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url: string,
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headers: Record<string, string>,
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timeoutMs: number,
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): Promise<unknown> {
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const ctrl = new AbortController()
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const timer = setTimeout(() => ctrl.abort(), timeoutMs)
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try {
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const res = await fetch(url, { headers, signal: ctrl.signal })
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if (!res.ok) throw new Error(`HTTP ${res.status}`)
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return await res.json()
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} finally {
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clearTimeout(timer)
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}
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}
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function idsFromPayload(json: unknown): string[] {
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const data = (json as { data?: Array<{ id: string }> }).data
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return (data ?? []).map((m) => m.id).filter(Boolean)
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}
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function toModelMap(ids: string[], filter: boolean): ModelMap {
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const models: ModelMap = {}
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for (const id of ids) {
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if (!filter || FORCED_MODELS.includes(id) || !NON_CHAT.test(id)) {
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models[id] = { name: id }
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}
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}
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return models
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}
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async function resolveModels(): Promise<ModelMap | null> {
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const cache = loadCache()
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if (cache && Date.now() - cache.ts < TTL_MS) return cache.models
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try {
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const models = toModelMap(idsFromPayload(await fetchJson(CATALOG_URL, {}, 5000)), false)
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if (Object.keys(models).length) {
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saveCache(models)
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return models
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}
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} catch {}
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try {
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const key = readApiKey()
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const json = await fetchJson(
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`${API_URL}/models`,
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key ? { Authorization: `Bearer ${key}` } : {},
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5000,
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)
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const models = toModelMap(idsFromPayload(json), true)
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saveCache(models)
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return models
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} catch {
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return cache?.models ?? null
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}
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}
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export default async function ArkaAIProviderPlugin() {
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const models = await resolveModels()
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const apiKey = readApiKey()
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return {
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config: (cfg: any) => {
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cfg.provider ??= {}
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const prev = cfg.provider[PROVIDER_ID] ?? {}
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// Static models from opencode.json act as a fallback; the fetched
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// catalog is layered on top so the configured default model never
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// disappears even if the catalog drops it.
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// apiKey from env or ~/.config/opencode/.arka-api-key so Desktop /
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// Windows GUI works without a login-shell export.
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cfg.provider[PROVIDER_ID] = {
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name: "Arka-AI",
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api: API_URL,
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env: ["ARKA_API_KEY"],
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...prev,
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models: { ...(prev.models ?? {}), ...(models ?? {}) },
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options: {
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...(prev.options ?? {}),
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...(apiKey ? { apiKey } : {}),
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},
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}
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},
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}
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}
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'@
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$skill = @'
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---
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name: arka-provider
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description: Manage the custom Arka-AI (arka-ai.ru) LLM provider in opencode config. Use when the user needs to add, refresh, or fix the arka-ai.ru provider, sync its model catalog, change the Arka-AI default model, or when arka models are missing from /models.
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---
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# Arka-AI provider
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arka-ai.ru is **not** in models.dev, so opencode ships no built-in config for it.
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It is wired up locally with a plugin + a static `provider` block in
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`~/.config/opencode/opencode.json`.
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## How it works
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- Plugin: `~/.config/opencode/plugins/arka-ai.ts`
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- On startup it loads the published chat catalog
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`https://git.arka-ai.ru/arka/public/raw/branch/main/opencode/catalog.json`
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(no API key; refreshed daily at 05:00 Europe/Moscow).
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- If that fetch fails, it falls back to `https://api.arka-ai.ru/v1/models`
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and filters out non-chat models (TTS/ASR/image/video/OCR/embedding/reranker/…)
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via a heuristic regex so the `/models` picker stays clean.
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- Caches the result at `~/.cache/opencode/arka-ai-models.json` (TTL 24h).
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- Injects the provider into config via the `config` hook, layered over the
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static block in `opencode.json`.
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- Static block (`opencode.json` → `provider["Arka-AI"]`) holds
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`name`, `api`, `env`, and a small fallback `models` map that is used when the
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catalog is unreachable.
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- Inference uses `ARKA_API_KEY` (env) or `~/.config/opencode/.arka-api-key`
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(so OpenCode Desktop / Windows GUI works without a login shell).
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## Refresh the model list
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Catalog ~216 raw models / ~116 chat; the public snapshot updates at 05:00
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Europe/Moscow. Changes land in opencode only after cache expiry + restart
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(config is not hot-reloaded).
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1. `rm -f ~/.cache/opencode/arka-ai-models.json`
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2. Restart opencode (or run `opencode` again) — the plugin re-fetches on the
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next cold start.
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Optionally inspect the live API (no key required for listing):
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```bash
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curl -sS https://api.arka-ai.ru/v1/models | python3 -m json.tool
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curl -sS https://git.arka-ai.ru/arka/public/raw/branch/main/opencode/catalog.json | python3 -m json.tool
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```
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## Change default model
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Edit `opencode.json` → `"model": "Arka-AI/<model-id>"`. Use the IDs exactly as
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returned by the catalog (e.g. `Arka-AI/DeepSeek-V4-Pro`,
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`Arka-AI/qwen3.8-max`, `Arka-AI/kimi-k3`).
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## Adjust filtering
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Edit `NON_CHAT` (regex) or `FORCED_MODELS` in the plugin file **and** the same
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lists in `scripts/sync-catalog.py` in `arka/public`, then re-run the installer
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and restart. `FORCED_MODELS` keeps must-have chat models even if the heuristic
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would drop them.
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'@
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$dirs = Get-InstallDirs
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foreach ($conf in $dirs) {
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$pluginDir = Join-Path $conf 'plugins'
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$skillDir = Join-Path $conf 'skills\arka-provider'
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New-Item -ItemType Directory -Force -Path $pluginDir | Out-Null
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New-Item -ItemType Directory -Force -Path $skillDir | Out-Null
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$pluginPath = Join-Path $pluginDir 'arka-ai.ts'
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$skillPath = Join-Path $skillDir 'SKILL.md'
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[System.IO.File]::WriteAllText($pluginPath, $plugin.TrimStart() + "`n")
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[System.IO.File]::WriteAllText($skillPath, $skill.TrimStart() + "`n")
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Write-Host "==> plugin $pluginPath"
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Write-Host "==> skill $skillPath"
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if ($Key) {
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$keyFile = Join-Path $conf '.arka-api-key'
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[System.IO.File]::WriteAllText($keyFile, $Key.Trim() + "`n")
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Write-Host "==> key $keyFile"
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}
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if ($SetDefault) {
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$confFile = Join-Path $conf 'opencode.json'
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Write-Host "==> default Arka-AI/$SetDefault in $confFile"
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$data = $null
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if (Test-Path $confFile) {
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$data = Get-Content -Raw -Encoding UTF8 $confFile | ConvertFrom-Json
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}
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if (-not $data) { $data = New-Object psobject }
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$data | Add-Member -NotePropertyName '$schema' -NotePropertyValue 'https://opencode.ai/config.json' -Force
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$data | Add-Member -NotePropertyName model -NotePropertyValue ("Arka-AI/" + $SetDefault) -Force
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($data | ConvertTo-Json -Depth 40) + "`n" | Out-File -FilePath $confFile -Encoding utf8
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}
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}
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if ($Key) {
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$env:ARKA_API_KEY = $Key
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try {
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[Environment]::SetEnvironmentVariable('ARKA_API_KEY', $Key, 'User')
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Write-Host '==> User environment ARKA_API_KEY (Desktop / GUI pick this up after a full restart)'
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} catch {
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Write-Warning "could not set User environment variable: $_"
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}
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} else {
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Write-Warning 'no ARKA_API_KEY; Desktop will not be able to call models until you set it'
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}
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Write-Host ''
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Write-Host 'Done.'
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Write-Host 'Next:'
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Write-Host ' 1. Fully quit OpenCode CLI *and* OpenCode Desktop (tray icon too), then start again.'
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Write-Host ' 2. /models — provider Arka-AI should appear (~116 chat models).'
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Write-Host ' 3. Refresh later: delete %USERPROFILE%\.cache\opencode\arka-ai-models.json and restart.'
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